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INTENSITY VARIATION DESCRIPTIVE METHODOLOGY: DEVELOPMENT AND APPLICATION OF A NEW SENSORY EVALUATION TECHNIQUE
Author(s) -
GORDIN HARVEY H.
Publication year - 1987
Publication title -
journal of sensory studies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 53
eISSN - 1745-459X
pISSN - 0887-8250
DOI - 10.1111/j.1745-459x.1987.tb00416.x
Subject(s) - computer science , software , sample (material) , data collection , sensory system , descriptive statistics , scale (ratio) , sample size determination , data mining , human–computer interaction , statistics , mathematics , psychology , chemistry , physics , chromatography , quantum mechanics , cognitive psychology , programming language
. The Intensity Variation Descriptive Methodology (IVDM) is a modification of the descriptive analysis procedure commonly used in the sensory evaluation of foods. The IVDM technique provides multiple attribute evaluations within specified sections of a product sample. In this study, the IVDM technique was used to quantify changes in attribute intensity as a cigarette sample was consumed. A touch sensitive Hewlett Packard 150 Personal Computer was used as the data collection instrument. Proprietary software was developed which created a graphic representation of an unstructured line scale on the computer screen. Subjects indicated the intensity of sensory attributes, within various sections of tobacco rod, by touching the computer screen anywhere along the line scale. Data obtained from IVDM evaluations indicated that this method was sensitive to the quantitative changes in cigarette smoke components during consumption of the product. The program developed for IVDM testing may be modified for conventional descriptive testing. The application of computers as sensory evaluation data collection instruments was explored.